Migraine is characterized by a unilateral pulsating moderate/severe headache which is aggravated by routine physical activity, and is accompanied by photo- and/or phonophobia, nausea and sometimes vomiting. Migraine exists in two forms, migraine without aura (MO) and migraine with aura (MA). Aura is reversible neurological disturbances of the vision, sensory and/or speech, which occur prior to the headache. The aura symptoms show intra-individual variations. The origin of migraine pain is still debated, since the origin of painful impulses in the trigeminal nerve is still uncertain. Some argues for central and other argues for peripheral mechanisms. Extracranial pain sensitive structures include skin, muscles, arteries, periosteum and joints. The skin is sensitive to all usual forms of pain stimuli, while especially temporal and neck muscles may be sources for pain and tenderness in migraine. Similarly is the frontal supraorbital, superficial temporal, posterior and occipital arteries sensitive to pain. It has been hypothesize that CSMT might relieve migraine due to stimulation of different mechanoreceptors in the neck such as the zygapophyseal joints, intervertebral discs and neck muscles. Numerous studies of manipulations have been conducted, but all had one or more methodological shortcomings, i.e. failure to specify diagnostic criteria, inadequate or no randomization procedure, lack of control, lack of patient blinding, lack of specified primary and secondary end points and shortcomings of statistical evaluation of the results. A few RCTs suggest that CSMT using diversified technique is an effective therapy for migraine. The diversified technique is used by 91% of chiropractors, and include a collections of procedures, hence the name diversified. It focuses on inter-segmental pretension (soft tissue tension) prior to the delivery of high velocity low amplitude (HVLA) adjustment. The Gonstead method is used by 59% of chiropractors and is also based on HVLA, but a major difference is the minimal usage of rotation in all adjustments in contrast to the diversified technique. The Gonstead method is considered safe, since severe adverse reactions have not been encountered. No studies have previously investigated the efficacy of the Gonstead method for migraine, although research in other CSMT modalities has been recommended.